Pencil-sharpener.



N0. 679,942. Patented Aug. 6,1901.

' E- BURKE..

PENCIL SHARPENER.

(Application filed Nov. 21, 1900.)

(No Model.)

STATES PATENT. @erica HYGIENE' BURKE, OF LAKEVIEW, OREGGN.

SPECFI-JATION forming pari; f Letters Patent'NO. 679,942, dated Aug-ust 6, 1901.'

Application led November 21, 1900. Serial No. 37,205. (No modeLD- i Y To @ZZ zrftom it mag/concern:

Be it known that I, EUGENE BURKE, a citizen of the United States,residing at Lakeview, county of Lake, and State of Oregon, have inventedcertain new and useful Improvements in Pencil-Sharpeners and Ido hereby declare the following to be a full, clearand exact description of the same.

The invention relates to a certain new and `useful device for sharpening pencils; and the object thereof is to provid a simple and inexpensive device by means'of which the wood may be cut from the pencil and the lead thereof sharpened, the device being of such a character that 'the cutting and sharpening mechanism is carried by a disk and actuated to cut the wood of the pencil and sharpen the .lead thereof by a forward and backward rotation or travel Voft-he disl In order to comprehend the invention, reference should be had to the accompanying sheet of drawings, wherein- Figure l is a side view in elevation of the Sharpener with a pencil therein. Fig. 2 is a vertical longitudinal sectional view, and Fig.

3 is a detail View, ofthe bearing-sleeve with pencil therein and pencilclamp secured thereon.

. In the drawings the letter A is used to indicate the disk, which may be constructedlof any suitable material. Preferably this disk fis provided Withran elastic tire or rim A'. This disk has securedthereto the tubular hub l5, which extendsa short distance beyond the outer face of thedisk. To the opposite face ofthe disk is attached .the hood or cap B. Through the hub B is loosely fitted the bearing-sleeve B2, which sleeve receives the pen# cil C to be sharpened.v Vithin the hood or cap i3' is arranged the rotary planer or k-nife C,`Which knife or planer is secured to the shaft C2, Working in bearings in the face cf the cap or hood and of the disk A. The said shaft projects slightly lthrough the diskand has secured to its projecting end the pinionct, which pinion meshes with pinion a', secured upon stud u?. This pinion in turn meshes with the stationary gear-ring D, fitted within the rim-flange ofthe disk A.` Said gear-ring is attached to the circular plate D', thehub D2 of which is loosely mounted upon bearing.4

sleeve B2 and is held in place by the pin l),

upwardly projecting from'bearingsleeve B2.- This pinb extends through a slot b in the hub D2, thus permitting slight longitudinal movement to be given to hub D2, while providing against rotation thereof. To the shaft C2 is secured, below the knife or planer C', a circular iile D3, which serves to point the lead of the pencil. Within the bearing-sleeve B2 there Ais arranged a spring d, which bears against the pencil fitted within or through the sleeve, thus regulating the sleeve to pencils of varying diameter. Without this spring or other compensating device it would be difficult to sharpen pencils of a diameter less than that required for a'snug fit Withih the sleeve.

The shavings or dirt caused by sharpening 'is deposited within the hood or cap and is removed therefrom through outlet-opening d. The Sharpener is operated in the following manner: The end of the pencil C to be sharpened is inserted' through the. bearing-sleeve B2 until its end comes in contact with the sharpening-knife or planer C'. The pencil is rmly held within the bearing-sleeve by the pressure of spring d and thumb-clamp E, itted thereover. It will be observed and understood that the clamp when slipped over the portion of the spring .which projects through the sleeve B2 will press upon this spring and force the same against the pencil with a greater force than said spring could alone exert. The operator then grasps and holds the hub firmly in 'one hand by means of the thumb-clamp, places the friction-ring A' in contact with some plane surface-such for instance, as a desk or table top-and rolls the rin'g on the plane surface. The frictonal engagement between the surface and the ring- A will cause the rotation of the saine and of Y the disk A. The disk, if desired, can be held from disengagement from the hub'B2by any preferred means; but no means is absolutely necessary, as the pressure o f the hand of thef operator and the resistancejoffered by the plane surface to the slipping of the ring thereon will retain the hood and disk on the hub B2. As the sleeve is held to the pencil, it does not turn, but the hub of the disk revolves thereon. During the rotation of the disk the pinion a', carried thereby, engages with the teeth of the stationary gear-ring D and-is thus rotated," the motion of which is transmitted to'the shaft C2 through the me inward as the Wood dium of the pinion a. As the knife or planer and file-disk. are secured to the shaft, they rotate therewith. During the rotationof the knife or planer C the wood of the pencil is gradually cut away, the pencil being forced is cut away until 'theexposed lead is engaged by the file-disk and filed to a point. All debris falls into the hood or cap B', from which it is removed vthrough ou tlet-opening d. i

If desired, the device lmay be made use of without the file-disk, although I preferto utilize the said file in connectioniwith the sharpener, as a better point may be given to the lead and liability of the same being broken by" the action of the knife or planer is obviated. Any suitably-shaped knife-blade or planer may be madeluse of.

The thumb-clamp provides-a convenienty means for holdingr the pencil, although itsguse may be dispensed with. Inasrnifch as the thumb-clamp consists of a split band having dinger-pieces e itis readily adapted'rto 'pencils oitvarying diameters.

Having thus described the invention,` what I claim as new, and desire to secure protection in `by Letters Patent, is '-1. Ina pencil-sharpening device, the c'ombinationl with a rotatable disk, adapted to be rot-ateilby rolling the same'olra surface, of a iubularhub secured Athereto,'a non-rotatable bearing-sleeve fitted therein and through .which the pencil slips,-a planer carried by .the rotatable disk, and means for operating i therplaner, said means being operatively connectedwith said disk, substantially as described.

2v.k In a pencil-sharpening device, the coin-` bination with a rotatable disk', adapted to be rotated by rolling the same on a surface, of a tubular hub secured thereto, anon-rotatable bearing-sleeve fitted therein and through which the pencilslips,`a planer and a filedisk, secured to and carried bythe rotatable disk, and of `means for imparting rotation to the'iile-disk and planer during the movenient of the disk.

3. Ina pencil-sharpening device, the com# bination with a rotatable substantially cir?. E cular disk having a tubular hub, of a non.

f rotatable bearingsleeve: iitted within the hub lofthe diskof a planer rotated bythe move- -j ement of the disk, a statienar gear-ring, and

ofpinions .for ,rotating the knife-blade or planer, said pinions being driven from thegear-ring during the the movement of the disk. f

y 4, In a pencil-sharpening device, the combination with a rotatable substantially'circular disk adaped' to lbe rotatedby rolling it on a'surface, of a tubulaihub secured thereto, a planer attached to said disk, and means operativelyV connected to the diskfor operating the planer, substantially as described;

5. In a pencil-sharpening device, the combinationwith arotatable substantially circular disk, of a tubular hub secured thereto, a planer secured to and, carried by the disk,

a rotary file for sharpening the lead'oi'v the pencil, of means for imparting rotation-to vthe fileand planer during the movement of the disk, and of ahood or cover attached to the disk and Within which the knife-bladeor planer and disk file operate.

6, In a/peneil-shargmning; device, the combination withva rotatable disk, adapted 'to be rotated `by rolling it on a surface, of a tubular hub secured thereto,a bearing-sleevelfitted within the tubular hub, a planer attached tol the disk, gear-and-pinion mechanism for irnparting rotation to the planer during -the movement of the disk, of a disk file rotated bythe gearandpinion mechanism.

f1'. In a pencil-,sharpening device, 'the coinbipation with a rotatable snbstantiallycircular disk, of a tubularhub secured thereto, a planer secured to ,and carried by the disk, theuiechanism for rotating the planer dur# ing the movement of the rotatable disk, a bearing-sleeve clamp for holding the pencil in thebearingsleeve. 1 I 8. In a pencil-Sharpener, the combination of a bearing-sleeve adapted to receive a pencil, a part rotatable o'n said sleeve and adapted to be rotated by rolling onv aj surface, a planer, and means operated by said rotatable partfor operating said planer,'su bstantially' as described." .l v

In Witness whereof `.I have hereunto set my hand.

EUGENE BURKE.

v `,Witnesses4 f WM. GUNTHER,

:- C. ILDUNLAP.

, fitted within the tubular hub of the disk, a spring therein, and of a thumb- ICIO 

